Patents by Inventor Kevin L. Mangle

Kevin L. Mangle has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Oil well pumping mechanism
    Patent number: 5253541
    Abstract: A pumping mechanism particularly adapted for coupling a rotating prime mover to the sucker rod of an oil well lift pump is disclosed. A linkage assembly comprised of a V-shaped floating link and two grounded links provides straight line, reciprocating motion from a rotary input, without the massive horsehead cam and flexible cable employed by conventional oil well pumping units. A driving dyad coupled to the floating link connects the linkage assembly to the prime mover, and a counterweight is carried by one of the grounded links.
    Type: Grant
    Filed: March 16, 1990
    Date of Patent: October 19, 1993
    Assignee: Regents of the University of Minnesota
    Inventors: Kevin L. Mangle, Arthur G. Erdman